IECEx Exproof Phone for hazardous area Explosion Proof TelephoneHongKong Koon Technology Ltd is the most professional manufacturer in Asia, The exclusive supplier for all Metro project in China.

We are the leading professional manufacture of most complete production line of IP66/IP67 emergency telephone, SOS phone, Weatherproof telephone, elevator telephone, tunnel trackside telephone, highway emergency phone.They are IP or PSTN/analogue telephone and wireless GSM 2G 3G. phone line powered, solar powered, or AC powered.